Pāpaʻi Graphite Papa Hui Pū ʻIa, Pāpā bipolar carbon

ʻO ka mea graphite kahi mea papa bipolar i kūkulu ʻia a hoʻohana mua ʻia. Hoʻohana nui ʻia nā papa bipolar kuʻuna i nā papa graphite non-porous, a ua hana ʻia nā grooves e ka mīkini. ʻO ka pāpaʻi bipolar graphite he haʻahaʻa haʻahaʻa hoʻonui hoʻonui wela, maikaʻi thermal conductivity, paʻa kemika waiwai, maikaʻi corrosion kū'ē a ikaika uila conductivity. Eia nō naʻe, ʻo ka brittleness o ka graphite ke kumu o ka paʻakikī o ka hoʻoponopono ʻana, a i ka manawa like ke kaupalena ʻia ka hoʻemi ʻana o ka mānoanoa o ka pā graphite, a maʻalahi ka hana ʻana i nā pores i ka wā o ka hana hana, i hiki ai i ka wahie a me ka oxidant ke komo i kekahi i kekahi. no laila pono e hoʻohui ʻia nā mea ʻē aʻe e hoʻomaikaʻi i ka hana pākaukau.

Ua hoʻomohala mākou i nā papa graphite bipolar kumu kūʻai no PEMFC e koi ana i ka hoʻohana ʻana i nā papa bipolar kiʻekiʻe me ka conductivity uila kiʻekiʻe a me ka ikaika mechanical maikaʻi. ʻO kā mākou mau papa bipolar e ʻae i nā pūnaewele wahie e hana i nā wela kiʻekiʻe a loaʻa iā ia ka conductivity uila a me ka wela.

Hāʻawi mākou i ka mea graphite me ka resin impregnated i mea e hoʻokō ai i ka impermeability kinoea a me ka ikaika kiʻekiʻe. Akā, mālama ka mea waiwai i nā waiwai maikaʻi o ka graphite ma ke ʻano o ka conductivity uila kiʻekiʻe a me ka conductivity thermal kiʻekiʻe.

Hiki iā mākou ke mīkini i nā papa bipolar ma nā ʻaoʻao ʻelua me nā māla kahe, a i ʻole ka mīkini ʻaoʻao hoʻokahi a i ʻole e hāʻawi pū i nā pā palaka unmachined. Hiki ke hana ʻia nā papa graphite āpau e like me kāu hoʻolālā kikoʻī.